Facebook的斯威夫特SDK：表達loginManager類型是不明確的錯誤

Question

我用下面的代碼到Facebook登錄添加到UIButton的行動：

func facebookButtonClicked(sender: UIButton) { 
    let loginManager = LoginManager() 

    loginManager.logIn([.PublicProfile], viewController : self) { loginResult in 
     switch loginResult { 
      case .Failed(let error): 
       print(error) 
      case .Cancelled: 
       print("User cancelled login") 
      case .Success(let grantedPermissions, let declinedPermissions, let accessToken): 
       print("Logged in") 
     } 
    } 
} 

的Xcode拋出以下錯誤：

Type of expression is ambiguous without more context 

爲[.PublicProfile]部分。

任何想法我在做什麼錯在這裏？

Answer 1

所以我通過使用自最近更新以來的正確的Facebook語法稍微解決了這個問題。

@IBAction func facebookBtnTapped(_ sender: AnyObject) { 

let loginManager = LoginManager() 
    loginManager.logIn([ .publicProfile ], viewController: self) { loginResult in 
     switch loginResult { 
     case .failed(let error): 
      print(error) 
     case .cancelled: 
      print("User cancelled login.") 
     case .success(let grantedPermissions, let declinedPermissions, let accessToken): 
      print("Logged in!") 
     } 
    } 

} 

Answer 2

最近，我解決了這個錯誤。

與ReadPermission.publicProfile

這樣就可以解決問題更換.publicProfile。

Answer 3

改變

viewController: self 

到

viewController: nil 

解決了這個問題對我來說

Answer 4

嘗試此最新SDK

func facebookButtonClicked(sender: UIButton) { 
    let loginManager = LoginManager() 

    loginManager.logIn(readPermissions: [.publicProfile], viewController : self) { loginResult in 
     switch loginResult { 
      case .failed(let error): 
       print(error) 
      case .cancelled: 
       print("User cancelled login") 
      case .success(let grantedPermissions, let declinedPermissions, let accessToken): 
       print("Logged in") 
     } 
    } 
} 

Answer 5

您應該添加readPermissons：第一個參數之前：

loginManager.logIn(readPermissions: [ .publicProfile], ... 

Answer 6

最終的解決方案是這樣的一個：

let loginManager=LoginManager() 
    loginManager.logIn(readPermissions: [ReadPermission.publicProfile], viewController : self) { loginResult in 
     switch loginResult { 
     case .failed(let error): 
      print(error) 
     case .cancelled: 
      print("User cancelled login") 
     case .success(let grantedPermissions, let declinedPermissions, let accessToken): 
      print("Logged in") 
     } 
    } 

Facebook還沒有更新自己的代碼的例子......

Answer 7

@objc func loginButtonClicked(sender : UIButton) { 
    let loginManager = LoginManager() 

    loginManager.logIn(readPermissions: [.publicProfile], viewController : self) { loginResult in 
     switch loginResult { 
     case .failed(let error): 
     print(error) 
     case .cancelled: 
     print("User cancelled login") 
     case .success(let grantedPermissions, let declinedPermissions, let accessToken): 
     print("Logged in") 
     } 
    } 
     }